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Electronic circuit and data storage system

a technology of electronic circuits and data storage systems, applied in the field of electronic circuits, can solve the problems of not being able to modify individual components, not being able to modify the resistance value after manufacture, etc., and achieve the effect of fine control of the tuning or modification of the resistan

Active Publication Date: 2019-02-12
PRAGMATIC PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a technique that allows for the modification of a circuit after it has been manufactured. By using irradiation, the resistance of a resisted element can be adjusted, optimised, or changed to modify the operation of the circuit. This modification can be done without making any direct physical contact to the circuit. By controlling the number of pulses of radiation used, the magnitude of the resistance change can be controlled, resulting in fine control of the tuning or modification of the resistance. This technique can be used to correct or adjust resistance values from the manufacturing process or to bring about a desired change in the circuit's operation.

Problems solved by technology

Typically, no modification of that configuration (and in particular, no modification of individual components) is possible after manufacture.
The resistance of resisted elements in such circuits is typically fixed during manufacture, and those resistance values are not modifiable later on.

Method used

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  • Electronic circuit and data storage system
  • Electronic circuit and data storage system
  • Electronic circuit and data storage system

Examples

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Embodiment Construction

[0061]Referring now to FIG. 1, this is a schematic representation of an electronic circuit embodying the invention. The circuit 100 comprises a plurality of resistive elements 1a-1g, with each resistive element consisting of a thin, substantially planar rectangular layer of semiconductive / semiconductor material. The circuit further comprises drive circuitry 3 and a 7-segment display 4, comprising 7 individually controllable display segments 4a-4g. Each resistive element 1a-1g is coupled / connected to a respective one of the display segments 4a-4g by a conductive track 2a (which in this example is provided by a thin layer of metallic material, for example gold, silver, aluminium, copper, and each resistive element 1a-1g is also coupled to the drive circuitry 3 by means of a respective further conductive track 2a-2g. Each resistive element 1a-1g is arranged such that, before irradiation, its resistance is sufficiently high that, during operation of the circuit, its respective display s...

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Abstract

A method of manufacturing an electronic circuit comprises: providing an electronic circuit having a first configuration in which the circuit comprises a resistive element having a first resistance, and irradiating at least a part of the resistive element with electromagnetic radiation to change the resistance of the resistive element from the first resistance to a second resistance, the second resistance being lower than the first resistance. A method of storing data comprises: receiving a piece of data to be stored; determining a number according to the data; and irradiating at least part of a resistive element with that number of pulses of electromagnetic radiation to change a resistance of the resistive element from a first resistance to a second resistance, the second resistance being lower than the first resistance. A difference between the first resistance and the second resistance is dependent on the number. Corresponding circuits and data storage systems are disclosed.

Description

FIELD OF THE INVENTION[0001]The present invention relates to electronic circuits, methods of manufacturing electronic circuits, data storage systems, and methods of storing and reading data.BACKGROUND TO THE INVENTION[0002]Electronic circuits are, of course, extremely well-known. Typically, an electronic circuit is manufactured in a particular configuration and the subsequent operation of the circuit is determined by that configuration. Typically, no modification of that configuration (and in particular, no modification of individual components) is possible after manufacture. The resistance of resisted elements in such circuits is typically fixed during manufacture, and those resistance values are not modifiable later on.[0003]A wide variety of data storage and retrieval systems are also known, using a wide variety of techniques for storing data on a variety of storage media. There is an on-going need with such systems to find ways in which data may be stored securely, i.e. in a man...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G02F1/13G11B9/04G11C13/00G11C11/56G11B11/12G11B11/08G11C13/04
CPCG11C13/047G11B9/04G11B11/08G11B11/12G11C13/044G11C13/0002G11C13/004G11C13/0007G11C13/0069G11C11/5685H01C17/242H10N70/20H10N70/257H10N70/823H10N70/8833G11C17/143G11C13/0004H10N70/883
Inventor PRICE, RICHARDRAMSDALE, CATHERINE
Owner PRAGMATIC PRINTING
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